Remaining Time

Asgeir Sigurdsson

Born and raised in Reykjavik, Iceland. Received a dental degree from University of Iceland, Faculty of Dentistry in 1988.  After one year in private practice in Iceland, moved to Chapel Hill, NC USA. Graduated from University of North Carolina (UNC) at Chapel Hill in 1992, with certificate in endodontics and Master of Science degree with emphasis on neurobiology and pain perception.
Full time faculty member at UNC School of Dentistry from 1992 until 2004, first as an assistant professor and then promoted to associate professor with tenure in 2000.  Appointed as the Graduate Program Director of Endodontics (specialty training) in 1997 and severed in that position until 2004. From 2004 to 2012 he was in a private endodontic practice in Reykjavik and UK.
In September of 2012 he became the Chairman of the Department of Endodontics, New York University College of Dentistry. Additionally he holds the following academic positions: From 2004 an adjunct Associate Professor at UNC, Honorary Clinical Teacher in Endodontology, UCL Eastman Dental Institute, London UK form 2006 and from 2011 to 2014 Honorary Clinical Associate Professor in the Faculty of Dentistry, The University of Hong Kong.
Dr. Sigurdsson is active in several professional organizations and is a past President of the International Association for Dental Traumatology. He also served as an Associate Editor of ACTA Odontologica Scandinavica and is on the editorial board of both International Endodontic Journal and Dental Traumatologia. In 2014 Dr. Sigurdsson was appointed by AAE as a Director of the American Board of Endodontics.
Dr. Sigurdsson has been invited over 160 times to give lectures, in 44 countries all over the World, on the topics of pain, pain modulation, endodontics, dental trauma and/or forensic sciences. He has written or co-written over 60 per-reviewed articles and 19 textbook chapters on same topics.
In 1998 he received Edward M. Osetek Educator Award, awarded by the American Association of Endodontists.
Alveolar Preservation In A Growing Child After Dental Trauma
The most challenging sequel to dental trauma is loss of a permanent anterior tooth in a growing child. Fortunately it is possible in some of those cases to close the gap by orthodontically moving adjacent teeth into the space and thereby both solve the esthetic problem and preserve the alveolar bone.  However in number of patients this is not possible and then it becomes a priority to preserve the alveolar bone until the child is fully-grown and implant can be placed.  If the root is extracted in a young child and nothing done further for the socket there is a high risk of severe collapse of the cortical bone plate as well as arrested vertical growth of the alveolus, making an implant placement difficult both for esthetic reasons as well as the need for a complicated graft surgery.  Recently it has been suggested that in some cases it is better to leave the root in place rather than extract it to preserve the bone and thereby preventing those complications. 
In the first part of this lecture the most common reasons for this premature loss will be presented; how those can be diagnosed radiographically and what if anything can be done to prevent the loss of the tooth.  In the second part of the lecture treatment options like root submergence and decoronation will be discussed in some details and indications for each presented.